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In the nursing field, when might you want to know the mean differences between two or...

In the nursing field, when might you want to know the mean differences between two or more groups? Please describe the situation, including how and why it would be used?
Math   Statistics-And-Probability   
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Answer #1

In Nursing Field, we might want to know the mean diffrences between two or more groups when we want to compare the effect of two treatment or we want to test a drug.

Suppose we want to test the effect of a drug which will help to loose weight, Then we divide our sample into 2 groups, One group , Group 1 is given drug and other group, Group 2 doen not given any drug but otherwise everything like diet and amount of exercise is same. After a period of time weight loss by both the groups are measured. Then we find the differences between both the weight loss and see if their is any diffrence or not . That is whether the drug is effective or not.

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